Conjugated Via Claimed Linking Group, Bond, Chelating Agent, Or Coupling Agent (e.g., Conjugated To Proteinaceous Toxin Via Claimed Linking Group, Bond, Coupling Agent, Etc.) Patents (Class 424/179.1)
  • Publication number: 20120308584
    Abstract: The invention provides protein-active agent conjugates having an amino acid motif that can be recognized by an isoprenoid transferase. The invention also provides compositions containing the conjugates, as well as methods for making the conjugates and compositions. The invention further provides methods for using the conjugates to deliver the active agent to a target cell, as well as methods for using the conjugates to treat a subject in need thereof (e.g., a subject in need of the active agent).
    Type: Application
    Filed: May 8, 2012
    Publication date: December 6, 2012
    Applicant: LEGOCHEM BIOSCIENCES, INC.
    Inventors: Yongzu Kim, Taekyo Park, Sungho Woo, Hyangsook Lee, Sunyoung Kim, Jongun Cho, Doohwan Jung, Youngun Kim, Hyunjin Kwon, Kyuman Oh, Yunseo Chung, Yun-Hee Park
  • Publication number: 20120301431
    Abstract: The present invention provides methods of treating (including preventing) a disease or condition associated with abnormal angiogenesis in a subject include administering a therapeutically effective amount of an AA targeting compound of the invention to the subject. The AA targeting compounds comprise AA targeting agent-linker conjugates which are linked to a combining site of an antibody.
    Type: Application
    Filed: August 13, 2012
    Publication date: November 29, 2012
    Inventors: Curt Bradshaw, Abhijit Bhat, Jing Yu Lai, Venkata Doppalapudi, Dingguo Liu
  • Publication number: 20120294848
    Abstract: The present invention relates to the provision of novel immunogens comprising an antigenic IgE peptide preferably linked to an immunogenic carrier for the prevention, treatment or alleviation of IgE-mediated disorders. The invention further relates to methods for production of these medicaments, immunogenic compositions and pharmaceutical compositing thereof and their use in medicine.
    Type: Application
    Filed: August 1, 2012
    Publication date: November 22, 2012
    Applicant: PFIZER VACCINES LLC
    Inventors: Alan Daniel Brown, Brian Robert Champion, Clare Christy, David Paul Gervais, Lyn Howard Jones, Anne Maria Kristina Kjerrstrom, David Cameron Pryde, Lee Richard Roberts, David Michael Wyatt
  • Patent number: 8309094
    Abstract: Disclosed are anti-5T4 antibody drug conjugates and methods for preparing and using the same.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 13, 2012
    Assignee: Wyeth LLC
    Inventors: Hans-Peter Gerber, John Francis DiJoseph, Kiran Manohar Khandke, Kimberly Ann Marquette, Puja Sapra, Lioudmila Gennadievna Tchistiakova
  • Publication number: 20120276119
    Abstract: Methods of using CD37 agents, including, but not limited to, antibodies and immunoconjugates, that bind to CD37 to deplete B-cells (e.g., non-cancerous B-cells) and methods of treating autoimmune and inflammatory diseases are further provided.
    Type: Application
    Filed: March 30, 2012
    Publication date: November 1, 2012
    Inventors: Jutta DECKERT, Julianto Setiady, Peter U. Park
  • Patent number: 8282934
    Abstract: The present invention concerns methods and compositions for forming cytokine-antibody complexes using dock-and-lock technology. In preferred embodiments, the cytokine-MAb DNL complex comprises an IgG antibody attached to two AD (anchor domain) moieties and four cytokines, each attached to a DDD (docking and dimerization domain) moiety. The DDD moieties form dimers that bind to the AD moieties, resulting in a 2:1 ratio of DDD to AD. The cytokine-MAb complex exhibits improved pharmacokinetics, with a significantly longer serum half-life than either naked cytokine or PEGylated cytokine. The cytokine-MAb complex also exhibits significantly improved in vitro and in vivo efficacy compared to cytokine alone, antibody alone, unconjugated cytokine plus antibody or cytokine-MAb DNL complexes incorporating an irrelevant antibody.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: October 9, 2012
    Assignee: IBC Pharmaceuticals, Inc.
    Inventors: Chien-Hsing Chang, David M. Goldenberg, Edmund A. Rossi
  • Patent number: 8268317
    Abstract: The invention relates to therapeutic conjugates with improved ability to target various diseased cells containing a targeting moiety (such as an antibody or antibody fragment), a linker and a camptothecin as a therapeutic moiety, and further relates to processes for making and using the said conjugates.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: September 18, 2012
    Assignee: Immunomedics, Inc.
    Inventors: Serengulam V. Govindan, David M. Goldenberg, Sung-Ju Moon
  • Patent number: 8268319
    Abstract: The invention relates to therapeutic conjugates with improved ability to target various cancer cells containing a targeting moiety and a therapeutic moiety. The targeting and therapeutic moieties are linked via an acid cleavable linkage that increases therapeutic efficacy of the immunoconjugate.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: September 18, 2012
    Assignee: Immunomedics, Inc.
    Inventor: Serengulam V. Govindan
  • Publication number: 20120225089
    Abstract: Provided herein are cryptophycin conjugates and compositions containing them. Methods of making and using such compounds also are provided.
    Type: Application
    Filed: December 20, 2011
    Publication date: September 6, 2012
    Applicant: SANOFI
    Inventors: Hervé BOUCHARD, Marie-Priscille BRUN, Alain COMMERCON, Jidong ZHANG
  • Patent number: 8252902
    Abstract: The present invention provides antibody targeting compounds in which the specificity of the antibody has been reprogrammed by covalently or noncovalently linking a targeting agent to the combining site of an antibody. By this approach, the covalently modified antibody takes on the binding specificity of the targeting agent. The compound may have biological activity provided by the targeting agent or by a separate biological agent. Various uses of the invention compounds are provided.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 28, 2012
    Assignee: The Scripps Research Institute
    Inventors: Carlos F. Barbas, Christoph Rader, Subhash C. Sinha, Richard A. Lerner
  • Patent number: 8226945
    Abstract: Anti-CD22 antibodies and immunoconjugates thereof are provided. Methods of using anti-CD22 antibodies and immunoconjugates thereof are provided.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: July 24, 2012
    Assignee: Genentech, Inc.
    Inventors: Allen J. Ebens, Jr., Alane M. Gray, Wei-Ching Liang, Yan Wu, Shang-Fan Yu
  • Publication number: 20120148610
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 14, 2012
    Applicant: Seattle Genetics, Inc.
    Inventors: Svetlana O. Doronina, Peter D. Senter, Brian E. Toki, Allen J. Ebens, Toni Beth Kline, Paul Polakis, Mark X. Sliwkowski, Susan D. Spencer
  • Patent number: 8197847
    Abstract: The application discloses a process for making a polymer having pendant side groups comprising: (i) polymerising an olefinically unsaturated monomer functionalized with (a) an azide group optionally protected by a protecting group, or (b) an alkyne group optionally protected by a protecting group, by living radical polymerization, most preferably RAFT, transitional metal mediated living radical polymerization (TMM-LRP) and/or atom transfer radical polymerization, to produce a polymer intermediate; (ii) removing, when present, at least a portion of the total number of protecting groups from the polymer intermediate; (iii) reacting the polymer intermediate with at least one pendant side group moiety functionalised with (a) an alkyne group or (b) an azide group respectively so that the alkyne and azide groups react to attach the pendant side group to the polymer. Processes for making supports comprising pendant side groups, and polymers and supports prepared by the method are also disclosed.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: June 12, 2012
    Assignee: Warwick Effect Polymers Ltd.
    Inventors: David M. Haddleton, Guiseppe Mantovani, Vincent Ladmiral
  • Publication number: 20120141507
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Application
    Filed: January 20, 2012
    Publication date: June 7, 2012
    Inventor: James Stefano
  • Publication number: 20120141508
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 7, 2012
    Applicant: Seattle Genetics, Inc.
    Inventors: Svetlana O. Doronina, Peter D. Senter, Brian E. Toki, Allen J. Ebens, Toni Beth Kline, Paul Polakis, Mark X. Sliwkowski, Susan D. Spencer
  • Publication number: 20120141509
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 7, 2012
    Applicant: Seattle Genetics, Inc.
    Inventors: Svetlana O. Doronina, Peter D. Senter, Brian E. Toki, Allen J. Ebens, Toni Beth Kline, Paul Polakis, Mark X. Sliwkowski, Susan D. Spencer
  • Patent number: 8192743
    Abstract: Activated polymeric bicine derivatives such as, as well as conjugates made therewith are disclosed. Methods of making and using the bicine derivatives are also disclosed.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: June 5, 2012
    Assignee: Enzon Pharmaceuticals, Inc.
    Inventors: Hong Zhao, Richard B. Greenwald, Susan L. Adler, legal representative
  • Publication number: 20120114704
    Abstract: The present invention provides antibodies or antigen-binding fragments thereof that specifically hind the ENDO180 polypeptide and are internalized thereby, to conjugates comprising the molecules, to compositions comprising the antibodies and conjugates and to methods of using the same for delivery of therapeutic agents to cells that express the ENDO180 polypeptide on the surface of the cell for treating cell proliferative diseases or disorders and fibrosis, and for controlling (modulating) tumor progression.
    Type: Application
    Filed: March 23, 2010
    Publication date: May 10, 2012
    Inventor: Elena Feinstein
  • Patent number: 8153114
    Abstract: The present invention relates to new and improved interleukin-7 polypeptides, as well as compositions comprising the same, their preparation and uses. The invention more particularly relates to hyperglycosylated IL-7 polypeptides having improved properties, as well as their manufacture and therapeutic uses. The invention also discloses novel IL-7 polypeptides having modified amino acid sequences containing artificially created glycosylation site(s), as well as corresponding nucleic acid molecules, vectors and recombinant host cells. The invention also relates to the use of such polypeptides, cells or nucleic acids for curative or preventive treatment of mammalian subjects, including human subjects.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: April 10, 2012
    Assignee: Cytheris
    Inventors: Michel Morre, Brigitte Assouline, Iann Rance, Anne Gregoire, Corinne Breque
  • Patent number: 8142781
    Abstract: The invention provides compositions, methods, and kits for increasing transport of agents across the blood brain barrier while allowing their activity once across the barrier to remain substantially intact. The agents are transported across the blood brain barrier via one or more endogenous receptor-mediated transport systems. In some embodiments the agents are therapeutic, diagnostic, or research agents.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: March 27, 2012
    Assignee: ArmaGen Technologies, Inc.
    Inventors: William M. Pardridge, Ruben J. Boado
  • Patent number: 8124094
    Abstract: Disclosed are an Fc fragment modified by a non-peptide polymer, a pharmaceutical composition comprising the Fc fragment modified by the non-peptide polymer as a carrier, a complex of the Fc fragment and a drug via a linker and a pharmaceutical composition comprising such a complex. The Fc fragment modified by a non-peptide peptide according to the present invention lacks immunogenicity and effector functions. Due to these properties, the Fc fragment maintains the in vivo activity of a drug conjugated thereto in high levels, remarkably increases the serum half-life of the drug, and remarkably reduces the risk of inducing immune responses.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: February 28, 2012
    Assignee: Hanmi Holdings Co., Ltd.
    Inventors: Young Min Kim, Sung Min Bae, Dae Jin Kim, Dae Hae Song, Chang Ki Lim, Se Chang Kwon, Gwan Sun Lee
  • Patent number: 8124073
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: February 28, 2012
    Assignee: Genzyme Corporation
    Inventor: James Stefano
  • Patent number: 8119101
    Abstract: Disclosed are compositions that include anti-CD74 immunoconjugates and optionally a therapeutic and/or diagnostic agent. In preferred embodiments, the immunoconjugates comprise one or more anti-CD74 antibodies or antigen-binding fragments thereof, conjugated to a liposome or micelle. Also disclosed are methods for preparing the immunoconjugates and using the immunoconjugates in diagnostic and therapeutic procedures. In certain preferred embodiments, the therapeutic methods comprise administering to a subject with a CD74-expressing disease an anti-CD74 immunoconjugate and thereby inducing apoptosis of CD74-expressing cells. In more preferred embodiments, the CD74 immunoconjugate is capable of inducing cell death in the absence of any other therapeutic agent, although such agents may be optionally administered prior to, together with or subsequent to administration of the anti-CD74 immunoconjugate. The compositions may be part of a kit for administering the anti-CD74 immunoconjugates or compositions.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: February 21, 2012
    Assignees: The Ohio State University, Immunomedics, Inc.
    Inventors: John C. Byrd, David M. Goldenberg, Hans J. Hansen
  • Publication number: 20120034245
    Abstract: Multivalent binding peptides, including bi-specific binding peptides, having immunoglobulin effector function are provided, along with encoding nucleic acids, vectors and host cells as well as methods for making such peptides and methods for using such peptides to treat or prevent a variety of diseases, disorders or conditions, as well as to ameliorate at least one symptom associated with such a disease, disorder or condition.
    Type: Application
    Filed: June 12, 2007
    Publication date: February 9, 2012
    Applicant: Emergent Product Development Seattle, LLC
    Inventors: Peter Armstrong Thompson, Jeffrey A. Ledbetter, Martha Susan Hayden-Ledbetter, Laura Sue Grosmaire, Robert Bader, William Brady
  • Publication number: 20120034246
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 9, 2012
    Applicant: SEATTLE GENETICS, INC.
    Inventors: SVETLANA O. DORONINA, PETER D. SENTER, BRIAN E. TOKI, ALLEN J. EBENS, TONI BETH KLINE, PAUL POLAKIS, MARK X. SLIWKOWSKI, SUSAN D. SPENCER
  • Publication number: 20120034247
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Application
    Filed: July 22, 2011
    Publication date: February 9, 2012
    Applicant: Seattle Genetics, Inc.
    Inventors: Svetlana O. Doronina, Peter D. Senter, Brian E. Toki, Allen J. Ebens, Toni Beth Kline, Paul Polakis, Mark X. Sliwkowski, Susan D. Spencer
  • Publication number: 20120014975
    Abstract: The invention relates to modified single domain antigen binding molecules, e.g., SDAB molecules, in particular TNF?-binding SDAB molecules. Method of preparing, and using the modified single domain antigen binding molecules described herein, to treat, e.g., TNF?-associated disorders, are also disclosed.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 19, 2012
    Applicant: Wyeth LLC
    Inventors: Martin Hegen, Stephane Hubert Olland, Yulia Vugmeyster, Xin Xu
  • Publication number: 20120009181
    Abstract: Novel anti-cancer agents, including, but not limited to, antibodies and immunoconjugates, that bind to human folate receptor 1 are provided. Methods of using the agents, antibodies, or immunoconjugates, such as methods of inhibiting tumor growth are further provided.
    Type: Application
    Filed: February 24, 2011
    Publication date: January 12, 2012
    Inventors: Olga AB, Daniel TAVARES, Lingyun RUI, Gillian PAYNE, Viktor S. GOLDMAKHER
  • Publication number: 20120003248
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Application
    Filed: April 29, 2011
    Publication date: January 5, 2012
    Applicant: Seattle Genetics, Inc.
    Inventors: Svetlana O. Doronina, Peter D. Senter, Brian E. Toki, Allen J. Ebens, Toni Beth Kline, Paul Polakis, Mark X. Sliwkowski, Susan D. Spencer
  • Publication number: 20120003247
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Application
    Filed: April 29, 2011
    Publication date: January 5, 2012
    Applicant: Seattle Genetics, Inc.
    Inventors: Svetlana O. Doronina, Peter D. Senter, Brian E. Toki
  • Publication number: 20120004643
    Abstract: The present invention includes compositions and methods for increasing the effectiveness of antigen presentation using a DCIR-specific antibody or fragment thereof to which an antigen is attached that forms an antibody-antigen complex, wherein the antigen is processed and presented by a dendritic cell that has been contacted with the antibody-antigen complex.
    Type: Application
    Filed: September 16, 2011
    Publication date: January 5, 2012
    Applicant: BAYLOR RESEARCH INSTITUTE
    Inventors: Gerard Zurawski, Jacques Banchereau, Eynav Klechevsky, Sandra Zurawski, Anne-Laure Flamar
  • Publication number: 20120003249
    Abstract: An immuno-molecule which comprises a soluble human MHC class I effector domain; and an antibody targeting domain which is linked to the soluble human MHC class I effector domain, methods of making same and uses thereof.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 5, 2012
    Applicants: Teva Pharmaceutical Industries Ltd., Technion Research & Development Foundation Ltd.
    Inventors: Yoram REITER, Avital Lev
  • Patent number: 8088387
    Abstract: The present invention discloses a method for targeting maytansinoids to a selected cell population, the method comprising contacting a cell population or tissue suspected of containing the selected cell population with a cell-binding agent maytansinoid conjugate, wherein one or more maytansinoids is covalently linked to the cell-binding agent via a non-cleavable linker and the cell-binding agent binds to cells of the selected cell population.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: January 3, 2012
    Assignee: Immunogen Inc.
    Inventors: Rita M. Steeves, Ravi V. J. Chari, Walter A. Blättler
  • Patent number: 8088884
    Abstract: The present disclosure provides novel POZ-2 derivatives, methods for synthesizing POZ-2 derivatives and intermediates useful in such methods. In one embodiment, the POZ-2 derivative comprises two linear POZ chains of the present disclosure linked directly or indirectly to a branching moiety that contains a functional group for linking the POZ-2 derivative to the target molecule. Target molecule-POZ-2 conjugates are also described. In certain embodiment, the POZ-2 derivatives have low polydispersity values and a decreased amount of impurities produced by unwanted side reactions, such as, but not limited to, chain transfer.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: January 3, 2012
    Assignee: Serina Therapeutics, Inc.
    Inventors: J. Milton Harris, Michael David Bentley, Kunsang Yoon, Zhihao Fang
  • Publication number: 20110318306
    Abstract: The present invention concerns methods and compositions for forming cytokine-antibody complexes using dock-and-lock technology. In preferred embodiments, the cytokine-MAb DNL complex comprises an IgG antibody attached to two AD (anchor domain) moieties and four cytokines, each attached to a DDD (docking and dimerization domain) moiety. The DDD moieties form dimers that bind to the AD moieties, resulting in a 2:1 ratio of DDD to AD. The cytokine-MAb complex exhibits improved pharmacokinetics, with a significantly longer serum half-life than either naked cytokine or PEGylated cytokine. The cytokine-MAb complex also exhibits significantly improved in vitro and in vivo efficacy compared to cytokine alone, antibody alone, unconjugated cytokine plus antibody or cytokine-MAb DNL complexes incorporating an irrelevant antibody.
    Type: Application
    Filed: January 25, 2011
    Publication date: December 29, 2011
    Applicant: IBC PHARMACEUTICALS, INC.
    Inventors: Chien-Hsing Chang, David M. Goldenberg, Edmund A. Rossi
  • Publication number: 20110300131
    Abstract: The application provides methods of diagnosis, prognosis, prophylaxis and treatment of ovarian, pancreatic and other cancers using antibodies that specifically bind to denatured CD70.
    Type: Application
    Filed: April 10, 2009
    Publication date: December 8, 2011
    Applicant: SEATTLE GENETICS, INC.
    Inventors: Maureen Ryan, Maria Leia Smith
  • Patent number: 8067006
    Abstract: The present invention concerns methods and compositions for delivery of therapeutic agents to target cells, tissues or organisms. In preferred embodiments, the therapeutic agents are delivered in the form of therapeutic-loaded polymers that may comprise many copies of one or more therapeutic agents. In more preferred embodiments, the polymer may be conjugated to a peptide moiety that contains one or more haptens, such as HSG. The agent-polymer-peptide complex may be delivered to target cells by, for example, a pre-targeting technique utilizing bispecific or multispecific antibodies or fragments, having at least one binding arm that recognizes the hapten and at least a second binding arm that binds specifically to a disease or pathogen associated antigen, such as a tumor associated antigen. Methods for synthesizing and using such therapeutic-loaded polymers and their conjugates are provided.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: November 29, 2011
    Assignee: Immunomedics, Inc.
    Inventors: Serengulam V. Govindan, Sung-Ju Moon, David M. Goldenberg, Chien-Hsing Chang
  • Patent number: 8067005
    Abstract: Divalent antibody fragments are described, each of which has one or more interchain bridges containing a synthetic or naturally occurring polymer selected from a polyalkylene, polyakenylene, polyoxyalkylene or polysaccharide. Each bridge may be the residue of a homo- or heterobifunctional cross-linking reagent and serves to link two heavy chains in each antibody fragment via the sulphur atoms of cysteine residues present in the chains. Each fragment may be attached to one or more effector or reporter molecules, and is of use in therapy or diagnostics where it has markedly improved binding and/or pharmacokinetic properties when compared to other antibody fragments which have the same number and type of polymer molecules but in which the polymer molecules are randomly attached.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: November 29, 2011
    Assignee: UCB Pharma S.A.
    Inventors: Andrew Paul Chapman, David John King
  • Patent number: 8057798
    Abstract: The present invention includes compositions and methods for increasing the effectiveness of antigen presentation using a DCIR-specific antibody or fragment thereof to which an antigen is attached that forms an antibody-antigen complex, wherein the antigen is processed and presented by a dendritic cell that has been contacted with the antibody-antigen complex.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: November 15, 2011
    Assignee: Baylor Research Institute
    Inventors: Gerald Zurawski, Jacques F. Banchereau, Eynav Klechevsky, Sandra Zurawski, Anne-Laure Flamar
  • Publication number: 20110274704
    Abstract: The present invention concerns methods and compositions for forming immunotoxin complexes having a high efficacy and low systemic toxicity. In preferred embodiments, the toxin moiety is a ranpirnase (Rap), such as Rap(Q). In more preferred embodiments, the immunotoxin is made using dock-and-lock (DNL) technology. The immunotoxin exhibits improved pharmacokinetics, with a longer serum half-life and significantly greater efficacy compared to toxin alone, antibody alone, unconjugated toxin plus antibody or even other types of toxin-antibody constructs. In a most preferred embodiment the construct comprises an anti-Trop-2 antibody conjugated to Rap, although other combinations of antibodies, antibody fragments and toxins may be used to form the subject immunotoxins. The immunotoxins are of use to treat a variety of diseases, such as cancer, autoimmune disease or immune dysfunction.
    Type: Application
    Filed: August 30, 2010
    Publication date: November 10, 2011
    Applicants: IBC PHARMACEUTICALS, INC., IMMUNOMEDICS, INC.
    Inventors: Chien-Hsing Chang, David M. Goldenberg, Edmund A. Rossi
  • Publication number: 20110274705
    Abstract: The present invention is directed to novel compositions that cause effective redirection of class I-immunity to Tc1 effectors, that take advantage of the unexpected loading of MHC I by peptide within IgG backbone combined with appropriate instruction of antigen presenting cells. Such compositions are able to transform a seemingly ineffective therapeutics into a highly effective one, associated with generation of class I-restricted cytolytic cells and IFN-?, IL-2 producing T cells, further associated with protection against a highly virulent microbe or recovery from malignant tumoral process.
    Type: Application
    Filed: April 1, 2011
    Publication date: November 10, 2011
    Inventors: Adrian Bot, Lilin Wang, Dan Smith, Bill Phillips
  • Publication number: 20110250130
    Abstract: Isolated binding proteins, e.g., antibodies or antigen binding portions thereof, which bind to tumor necrosis factor-alpha (TNF-?), e.g., human TNF-?, and related antibody-based compositions and molecules are disclosed. Also disclosed are pharmaceutical compositions comprising the antibodies, as well as therapeutic and diagnostic methods for using the antibodies.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 13, 2011
    Inventors: Lorenzo Benatuil, Tariq Ghayur, Carrie L. Goodreau, Peter C. Isakson, Jochen Salfeld
  • Patent number: 8034959
    Abstract: The present invention provides analogues of duocarmycins that are potent cytotoxins. Also provided are peptidyl and disulfide linkers that are cleaved in vivo. The linkers are of use in forming prodrugs and conjugates of the cytotoxins of the invention as well as other diagnostic and therapeutic moieties. The invention provides prodrugs and conjugates of the duocarmycin analogues with the linker arms of the invention.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: October 11, 2011
    Assignee: Medarex, Inc.
    Inventors: Howard P. Ng, Zhi-Hong Li, Danny P. C. McGee, Oliver L. Saunders, Guoxian Wu, David John King, Valeri Martichonok, Sharon Elaine Boyd, Thomas J. Lobl
  • Patent number: 8034352
    Abstract: The present invention concerns methods and compositions for forming cytokine-antibody complexes using dock-and-lock technology. In preferred embodiments, the cytokine-MAb DNL complex comprises an IgG antibody attached to two AD (anchor domain) moieties and four cytokines, each attached to a DDD (docking and dimerization domain) moiety. The DDD moieties form dimers that bind to the AD moieties, resulting in a 2:1 ratio of DDD to AD. The cytokine-MAb complex exhibits improved pharmacokinetics, with a significantly longer serum half-life than either naked cytokine or PEGylated cytokine. The cytokine-MAb complex also exhibits significantly improved in vitro and in vivo efficacy compared to cytokine alone, antibody alone, unconjugated cytokine plus antibody or cytokine-MAb DNL complexes incorporating an irrelevant antibody. In more preferred embodiment the cytokine is G-CSF, erythropoietin or INF-?2b.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: October 11, 2011
    Assignee: IBC Pharmaceuticals, Inc.
    Inventors: Chien-Hsing Chang, David M. Goldenberg, Edmund A. Rossi
  • Publication number: 20110236309
    Abstract: The invention provides hetero-multivalent ligand binging agents (traps) for members of the TGF-? superfamily, as well as methods for making and using such constructs. In an embodiment of the invention there is provided a hetero-multivalent binding agent with affinity for a member of the TGF-? superfamily, said agent comprising the general structure (I): (<bd1>-linker1)k-[{<bd1>-linker2-<bd2>-linker3r-}n-(<bd3>)m-(linker4-<bd4>)d]h, where bd1, bd2, bd3 and bd4 are polypeptide binding domains having an affinity for different sites on the same member or for different members of the TGF-? superfamily, wherein at least two of bd1, bd2, bd3, and bd4 are different from each other.
    Type: Application
    Filed: September 17, 2009
    Publication date: September 29, 2011
    Inventors: Maureen D. O'Connor-Mccourt, Traian Sulea, John C. Zwaagstra, Jason Baardsnes, Catherine Collins
  • Patent number: 7994135
    Abstract: Auristatin peptides, including MeVal-Val-Dil-Dap-Norephedrine (MMAE) and MeVal-Val-Dil-Dap-Phe (MMAF), were prepared and attached to Ligands through various linkers, including maleimidocaproyl-val-cit-PAB. The resulting ligand drug conjugates were active in vitro and in vivo.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: August 9, 2011
    Assignee: Seattle Genetics, Inc.
    Inventors: Svetlana O. Doronina, Peter D. Senter, Brian E. Toki, Allen J. Ebens, Toni Beth Kline, Paul Polakis, Mark X. Sliwkowski, Susan D. Spencer
  • Patent number: 7989554
    Abstract: A new method of preparing a tertiary alkyl ester of a polyalkylene oxide is provided. The new method employs milder conditions that avoid the back reaction to the starting polyalkylene oxide. The tertiary alkyl ester of a polyalkylene oxide is then reacted with a suitable acid to produce a polyalkylene oxide acid.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: August 2, 2011
    Assignee: Enzon Pharmaceuticals, Inc.
    Inventors: Hong Zhao, Anthony J. Martinez
  • Patent number: 7989594
    Abstract: The present invention provides antibody Fab fragments in which the heavy chain constant region terminates at the interchain cysteine of CH1. Also provided are antibody Fab fragments in which the heavy chain constant region terminates at the interchain cysteine of CH1 to which one or more effector molecules are attached.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: August 2, 2011
    Assignee: Celltech R & D Limited
    Inventors: David Paul Humphreys, Sam Philip Heywood
  • Publication number: 20110177103
    Abstract: The present invention is directed to compositions of matter useful for the diagnosis and treatment of tumor in mammals and to methods of using those compositions of matter for the same.
    Type: Application
    Filed: March 11, 2011
    Publication date: July 21, 2011
    Inventors: Mark S. Dennis, William Mallet, Paul Polakis
  • Patent number: 7977464
    Abstract: There is disclosed antibody molecules containing at least one CDR derived from a mouse monoclonal antibody having specificity for human TNF?. There is also disclosed a CDR grafted antibody wherein at least one of the CDRs is a hybrid CDR. Further disclosed are DNA sequences encoding the chains of the antibody molecules, vectors, transformed host cells and uses of the antibody molecules in the treatment of diseases mediated by TNF?.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: July 12, 2011
    Assignee: UCB Pharma S.A.
    Inventors: Diljeet Singh Athwal, Derek Thomas Brown, Andrew Neil Charles Weir, Andrew George Popplewell, Andrew Paul Chapman, David John King